after joke being his weight on david letterman's show, chris christie told reporters at a news conference yesterday "of course i care about it and i'm making the best effort i can." the potential presidential candidate insisted he is remarkably healthy woochlty asked was it a good idea for him to joke about his weight and 84% said yes. 16% said no. that does it for this edition of "news nation." thanks for joining us and see you tomorrow on news nation. the senate will hold a hearing for john brennan and carry that live coverage beginning around 2:30. we will see you then. the cycle is up next. (dog) larry,larry,larrryyy. why take exercise so seriously,when it can be fun? push-ups or sprints? what's wrong with fetch? or chase? let's do this larry! ooh, i got it, i got it! (narrator) the calorie-smart nutrition in beneful healthy weight... includes grains and real chicken, because a healthy dog is a playful dog. beneful healthy weight. find us on facebook to help put more play in your day. try align. it's the number one ge recommended probiotic that helps maintain digestive balance. ♪ st